81964960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6653}}^1$

素因数の和:6686

約数の個数: 96

約数和(自身を含む): 241460352

約数和(自身を除く): 159495392

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1760, 2464, 3080, 6160, 6653, 12320, 13306, 26612, 33265, 46571, 53224, 66530, 73183, 93142, 106448, 133060, 146366, 186284, 212896, 232855, 266120, 292732, 365915, 372568, 465710, 512281, 532240, 585464, 731830, 745136, 931420, 1024562, 1064480, 1170928, 1463660, 1490272, 1862840, 2049124, 2341856, 2561405, 2927320, 3725680, 4098248, 5122810, 5854640, 7451360, 8196496, 10245620, 11709280, 16392992, 20491240, 40982480, 81964960]

約数ペア:

[(1, 81964960), (2, 40982480), (4, 20491240), (5, 16392992), (7, 11709280), (8, 10245620), (10, 8196496), (11, 7451360), (14, 5854640), (16, 5122810), (20, 4098248), (22, 3725680), (28, 2927320), (32, 2561405), (35, 2341856), (40, 2049124), (44, 1862840), (55, 1490272), (56, 1463660), (70, 1170928), (77, 1064480), (80, 1024562), (88, 931420), (110, 745136), (112, 731830), (140, 585464), (154, 532240), (160, 512281), (176, 465710), (220, 372568), (224, 365915), (280, 292732), (308, 266120), (352, 232855), (385, 212896), (440, 186284), (560, 146366), (616, 133060), (770, 106448), (880, 93142), (1120, 73183), (1232, 66530), (1540, 53224), (1760, 46571), (2464, 33265), (3080, 26612), (6160, 13306), (6653, 12320)]